| Port Neches to Cognac | 4,931.42 mi (7,936.35 km) |
| Port Neches to Cogolin | 5,309.21 mi (8,544.35 km) |
| Port Neches to Colmar | 5,183.82 mi (8,342.55 km) |
| Port Neches to Colombes | 4,948.96 mi (7,964.58 km) |
| Port Neches to Colomiers | 5,066.39 mi (8,153.57 km) |
| Port Neches to Combs-la-Ville | 4,969.06 mi (7,996.93 km) |
| Port Neches to Comines | 4,926.22 mi (7,927.98 km) |
| Port Neches to Compiegne | 4,958.02 mi (7,979.16 km) |
| Port Neches to Concarneau | 4,716.69 mi (7,590.78 km) |
| Port Neches to Conde-sur-l'Escaut | 4,958.49 mi (7,979.93 km) |
| Port Neches to Conflans-Sainte-Honorine | 4,940.43 mi (7,950.86 km) |
| Port Neches to Corbas | 5,159.55 mi (8,303.50 km) |
| Port Neches to Corbeil-Essonnes | 4,967.48 mi (7,994.39 km) |
| Port Neches to Cormeilles-en-Parisis | 4,945.41 mi (7,958.87 km) |
| Port Neches to Cosne sur Loire | 5,021.66 mi (8,081.59 km) |
